摘要:
A regeneration system for an exhaust gas cleaning device disposed in an exhaust emission path of an internal combustion engine has an exhaust gas cleaning honeycomb filter and a heating element for the filter, wherein the filter is a checkered SiC honeycomb filter having a given cell structure, and the heating element is a heater or a glow plug when using a fuel containing fuel additive.
摘要:
A honeycomb structured body of the present invention comprises a plurality of cells placed in parallel with one another in a longitudinal direction with a cell wall therebetween, wherein an oxide catalyst is supported on at least one portion of the cell wall, and the honeycomb structured body has an apparent density of about 0.7 g/cm3 or less.
摘要翻译:本发明的蜂窝结构体包括多个在长度方向上彼此平行放置的细胞,其间具有细胞壁,其中氧化物催化剂被支撑在细胞壁的至少一部分上,蜂窝结构体 具有约0.7g / cm 3以下的表观密度。
摘要:
An object of the present invention is to provide a honeycomb structural body which is low in pressure loss and can prolong a period up to a regenerating process. The present invention is directed to a columnar honeycomb structural body comprising a large number of through holes placed in parallel with one another in a length direction with wall portion interposed therebetween, wherein: each of the through holes has one of ends sealed; one end face of the through hole differs in opening area from the other end face thereof; a ceramic material which constitutes the wall portion has an average pore diameter in a range from 5 to 30 μm; and the rate of capacity of micro pores each having a pore diameter two or more times larger than the average pore diameter is set to 30% or less of the capacity of the entire micro pores.
摘要:
A honeycomb structure includes at least one honeycomb unit having opening ratio (P) of at least approximately 50% and at most approximately 65% and a cell density ρ of at least approximately 31/cm2 and at most approximately 93/cm2. The honeycomb unit includes an inorganic binder and at least approximately 230 g/L of zeolite in which L represents an apparent volume. The honeycomb unit further includes and a plurality of cell walls extending from a first end to a second end of the honeycomb unit along a longitudinal direction of the honeycomb unit to define cells. The cell walls have a surface roughness Ra of at least approximately 1 μm and at most approximately 30 μm.
摘要翻译:蜂窝结构包括至少一个具有至少约50%且至多约65%的开口率(P)和蜂窝密度的蜂窝单元, 至少约31 / cm 2和至多约93 / cm 2。 蜂窝单元包括无机粘合剂和至少约230g / L的沸石,其中L表示表观体积。 蜂窝单元还包括沿蜂窝单元的纵向方向从蜂窝单元的第一端延伸到第二端的多个单元壁,以限定单元。 细胞壁的表面粗糙度Ra至少约为1μm,至多约30μm。
摘要:
A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit has a longitudinal direction and includes zeolite and an inorganic binder. A content of the zeolite per apparent unit volume of the at least one honeycomb unit is about 230 g/L or greater. The at least one honeycomb includes plural cell walls extending from one end face to another end face along the longitudinal direction to define plural cell walls. A porosity of substantially all pores in the cell walls is about 40% or less. A porosity of pores having diameters in a range of about 0.005 μm through about 0.02 μm in the cell walls is about 5% or greater. A porosity of pores having diameters in a range of about 0.05 μm through about 0.2 μm in the cell walls is about 17.5% or greater.
摘要:
A honeycomb structure is provided that includes a plurality of pillar-shaped honeycomb fired bodies, each having a number of cells longitudinally disposed in parallel with one another with a cell wall therebetween. An adhesive layer is interposed between adjacent honeycomb fired bodies of the plurality of honeycomb fired bodies to combine the plurality of honeycomb fired bodies together, and a sealing material layer is formed on an outer peripheral face of the combined plurality of honeycomb fired bodies. At least two honeycomb fired bodies of the plurality of honeycomb fired bodies have an outer wall that forms a portion of the outer peripheral face of the combined plurality of honeycomb fired bodies. At least one of the outer walls has a protruding portion extending from a surface thereof, and the protruding portion is made from a same material as a material of the at least one outer wall.
摘要:
A honeycomb filter includes a ceramic block which includes a plurality of honeycomb fired bodies, an adhesive layer, and irregularities on a peripheral face of the ceramic block. Each honeycomb fired body has a longitudinal direction and cell walls extending along the longitudinal direction to define cells each sealed at either one of both ends of each of the cells. The honeycomb fired bodies include at least one of silicon carbide and silicon-containing silicon carbide. The adhesive layer is provided between the honeycomb fired bodies to connect the honeycomb fired bodies. The irregularities on the peripheral face include a projected portion formed by apart of the cell walls. A sealing material layer is provided on the peripheral face of the ceramic block in accordance with the irregularities on the peripheral face so that an outer peripheral surface of the honeycomb filter has surface irregularities thereon.
摘要:
A honeycomb structure is disclosed that includes plural through-holes separated by plural partition walls and provided in parallel along a longitudinal direction, wherein the thickness of each of the partition walls is less than or equal to about 0.25 mm, the length of each of the through-holes is equal to or greater than about 50-fold of a hydraulic diameter of each of the through-holes and less than or equal to about 350-fold of the hydraulic diameter of each of the through-holes, and an open area ratio (X) % of a cross section of the honeycomb structure perpendicular to the through-holes and a surface area per unit volume (Y (m2/L)) satisfy Y≧250×X+22500 (about 50≦X≦about 85).
摘要:
A honeycomb structure including a plurality of cells arranged in parallel while being separated by cell walls, and extending in a longitudinal direction of the honeycomb structure. Each cell is sealed at one of end portions thereof. In the honeycomb structure, the relation expressed by an expression (1) is satisfied: 11/6−10/3×A≦B (1) where A (mm) designates thickness of the cell walls, and B (m2/cm3) designates a surface area per unit volume of the cell walls.
摘要:
A honeycomb structured body of the present invention includes plural pillar-shaped honeycomb units which are bonded to one another through sealing material layers, each unit having in the longitudinal direction a large number of cells placed in parallel with a cell wall therebetween, wherein each honeycomb unit includes inorganic fibers and/or whiskers in addition to inorganic particles, a cross-sectional area of the honeycomb unit on a cross section perpendicular to the longitudinal direction is set to at least about 5 cm2 and at most about 50 cm2, and a coefficient αL of thermal expansion of the sealing material layer and a coefficient αF of thermal expansion of the honeycomb unit satisfy the following relationship: about 0.01≦|αL−αF|/αF≦about 1.0.